Split paste into addr field by commas

webmail/webmail.ts

@@ -1785,6 +1785,24 @@ const compose = (opts: ComposeOptions, listMailboxes: listMailboxes) => {
 						autosizeElem.dataset.value = inputElem.value
 						fetchRecipientSecurity()
 					},
+					function paste(e: ClipboardEvent) {
+						const data = e.clipboardData?.getData('text/plain')
+						if (typeof data !== 'string' || data === '') {
+							return
+						}
+						const split = data.split(',')
+						if (split.length <= 1) {
+							return
+						}
+						autosizeElem.dataset.value = inputElem.value = split[0]
+						let last
+						for (const rest of split.splice(1)) {
+							last = newAddrView(rest.trim(), isRecipient, views, btn, cell, row, single)
+						}
+						last!!.input.focus()
+						e.preventDefault()
+						e.stopPropagation()
+					},
 				),
 				securityBar=dom.span(
 					css('securitybar', {